Can fire trucks get in and you get out at the same time? Can the fire fighters get out if they need to retreat?
Do they have a place to park the truck and water to fight the fire?
Do the fire fighters have a source of water to fight the fire?
You will not have power! Do the fire fighters still have water without power?
Will trees and burning branches rain down and block you or the fire fighters from getting in our out?
Is the structure going to be built at the top of a hill? Can you move vegetation back to provide defensible space and a place to park a fire truck?